81363996

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:224

約数の個数: 144

約数和(自身を含む): 245539840

約数和(自身を除く): 164175844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 61, 63, 67, 79, 84, 122, 126, 134, 158, 183, 201, 237, 244, 252, 268, 316, 366, 402, 427, 469, 474, 549, 553, 603, 711, 732, 804, 854, 938, 948, 1098, 1106, 1206, 1281, 1407, 1422, 1659, 1708, 1876, 2196, 2212, 2412, 2562, 2814, 2844, 3318, 3843, 4087, 4221, 4819, 4977, 5124, 5293, 5628, 6636, 7686, 8174, 8442, 9638, 9954, 10586, 12261, 14457, 15372, 15879, 16348, 16884, 19276, 19908, 21172, 24522, 28609, 28914, 31758, 33733, 36783, 37051, 43371, 47637, 49044, 57218, 57828, 63516, 67466, 73566, 74102, 85827, 86742, 95274, 101199, 111153, 114436, 134932, 147132, 148204, 171654, 173484, 190548, 202398, 222306, 257481, 303597, 322873, 333459, 343308, 404796, 444612, 514962, 607194, 645746, 666918, 968619, 1029924, 1214388, 1291492, 1333836, 1937238, 2260111, 2905857, 3874476, 4520222, 5811714, 6780333, 9040444, 11623428, 13560666, 20340999, 27121332, 40681998, 81363996]

約数ペア:

[(1, 81363996), (2, 40681998), (3, 27121332), (4, 20340999), (6, 13560666), (7, 11623428), (9, 9040444), (12, 6780333), (14, 5811714), (18, 4520222), (21, 3874476), (28, 2905857), (36, 2260111), (42, 1937238), (61, 1333836), (63, 1291492), (67, 1214388), (79, 1029924), (84, 968619), (122, 666918), (126, 645746), (134, 607194), (158, 514962), (183, 444612), (201, 404796), (237, 343308), (244, 333459), (252, 322873), (268, 303597), (316, 257481), (366, 222306), (402, 202398), (427, 190548), (469, 173484), (474, 171654), (549, 148204), (553, 147132), (603, 134932), (711, 114436), (732, 111153), (804, 101199), (854, 95274), (938, 86742), (948, 85827), (1098, 74102), (1106, 73566), (1206, 67466), (1281, 63516), (1407, 57828), (1422, 57218), (1659, 49044), (1708, 47637), (1876, 43371), (2196, 37051), (2212, 36783), (2412, 33733), (2562, 31758), (2814, 28914), (2844, 28609), (3318, 24522), (3843, 21172), (4087, 19908), (4221, 19276), (4819, 16884), (4977, 16348), (5124, 15879), (5293, 15372), (5628, 14457), (6636, 12261), (7686, 10586), (8174, 9954), (8442, 9638)]